Where can I put my program in the GUI

Hi there,

I have a program for 3 arms with one freedom degree, I want to transfer it to GUI. But I don't know where I'll put it so as to manipulate the 3 arms simultaneous with Sliders. Matlab generates two functions:

• function varargout = passerelles(varargin) %we can't edit it.
• function passerelles_OpeningFcn(hObject, eventdata, handles, varargin) %runs one time at the beginning.

I want to move the 3 arms simultaneous, so I need where I'll put my program so that can run according to the slider value.

Thank you so much for your help.